Highly resistive Mn-Zn ferrite films prepared from aqueous solution for GHz conducted noise suppressors

Nobuhiro Matsushita; Tatsunobu Abe; Koichi Kondo; Shigeyoshi Yoshida; Masanori Abe

doi:10.1063/1.1855591

Highly resistive Mn-Zn ferrite films prepared from aqueous solution for GHz conducted noise suppressors

Nobuhiro Matsushita, Tatsunobu Abe, Koichi Kondo, Shigeyoshi Yoshida, Masanori Abe

Material Solutions Center (MaSC)

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

We have prepared Mn-Zn ferrite films (MnxZnyFezO4.00-δ: 0.23<x<0.30, 0.0<y<0.38, 2.39<z<2.64) that are highly permeable in GHz range. The film resistivity ρ increased as the amount of Fe content z decreased and very high surface resistance R>108 Ω/sq was attained for the film having z<2.6. The deposited Mn-Zn ferrite films had a large saturation magnetization Ms=380-460 emucm3 and relatively low coercivity Hc=11-29 Oe. The Mn-Zn ferrite films contacted to a microstrip line (50 Ω) exhibited very large transmission loss ΔPloss per thickness t, ΔPlosst, of about 10 times larger than that of commercialized composite sheet. They exhibited sufficiently low reflection coefficient S11<-10 dB. These films were applicable as noise current suppressors deposited on an interlayer of multilayer printed circuit boards.

Original language	English
Article number	10G106
Journal	Journal of Applied Physics
Volume	97
Issue number	10
DOIs	https://doi.org/10.1063/1.1855591
Publication status	Published - 2005 May 15

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title = "Highly resistive Mn-Zn ferrite films prepared from aqueous solution for GHz conducted noise suppressors",

abstract = "We have prepared Mn-Zn ferrite films (MnxZnyFezO4.00-δ: 0.23108 Ω/sq was attained for the film having z<2.6. The deposited Mn-Zn ferrite films had a large saturation magnetization Ms=380-460 emucm3 and relatively low coercivity Hc=11-29 Oe. The Mn-Zn ferrite films contacted to a microstrip line (50 Ω) exhibited very large transmission loss ΔPloss per thickness t, ΔPlosst, of about 10 times larger than that of commercialized composite sheet. They exhibited sufficiently low reflection coefficient S11<-10 dB. These films were applicable as noise current suppressors deposited on an interlayer of multilayer printed circuit boards.",

author = "Nobuhiro Matsushita and Tatsunobu Abe and Koichi Kondo and Shigeyoshi Yoshida and Masanori Abe",

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AU - Matsushita, Nobuhiro

AU - Abe, Tatsunobu

AU - Kondo, Koichi

AU - Yoshida, Shigeyoshi

AU - Abe, Masanori

N1 - Funding Information: This work was supported by a Grant-in-Aid for the Creation of Innovations through Business-Academic-Public Sector Cooperation from Japan’s Ministry of Education, Culture, Sports, Science, and Technology.

PY - 2005/5/15

Y1 - 2005/5/15

N2 - We have prepared Mn-Zn ferrite films (MnxZnyFezO4.00-δ: 0.23108 Ω/sq was attained for the film having z<2.6. The deposited Mn-Zn ferrite films had a large saturation magnetization Ms=380-460 emucm3 and relatively low coercivity Hc=11-29 Oe. The Mn-Zn ferrite films contacted to a microstrip line (50 Ω) exhibited very large transmission loss ΔPloss per thickness t, ΔPlosst, of about 10 times larger than that of commercialized composite sheet. They exhibited sufficiently low reflection coefficient S11<-10 dB. These films were applicable as noise current suppressors deposited on an interlayer of multilayer printed circuit boards.

AB - We have prepared Mn-Zn ferrite films (MnxZnyFezO4.00-δ: 0.23108 Ω/sq was attained for the film having z<2.6. The deposited Mn-Zn ferrite films had a large saturation magnetization Ms=380-460 emucm3 and relatively low coercivity Hc=11-29 Oe. The Mn-Zn ferrite films contacted to a microstrip line (50 Ω) exhibited very large transmission loss ΔPloss per thickness t, ΔPlosst, of about 10 times larger than that of commercialized composite sheet. They exhibited sufficiently low reflection coefficient S11<-10 dB. These films were applicable as noise current suppressors deposited on an interlayer of multilayer printed circuit boards.

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Highly resistive Mn-Zn ferrite films prepared from aqueous solution for GHz conducted noise suppressors

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